Combination tool and grinder



Dec. 25, 1923. 1,478,993

J. r. rlLLMAN COMBINATION TOOL ANDGRINDER Filed April l. 1921 y 2 Sheets-Sheet l l we /osq ZV77/man Dec. 25, 1923. 1,478,993

J. T. TILLMAN COMBINATION TOOL AND GRINDER Filed April 1.A 1921 sheets-sheet 2 Patented Dec. 25, 1923.

earner yarie.,

JOSEPH T. TIL'LMAN, OF MNNEAPOLIS, MNNESOTA, ASSIGNOR TO (MRS.) GUSTA'V'E F. KRESEL.l

application med april i,

To all whom t may concern.'

Be it known that I, JOSEPH T. TILLMAN, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful improvements in Combination Tools and Grinders; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a combination tool, and particularly to such a tool which is of great utility in connection with automobiles.

It is an object of this invention to provide a hand tool equipped with a small compact and convenient motor` which can be used to grind and reseat valves of the automobile engine or which can bevused as a drill or provided with a grinding wheel and used to finish or grind any desired parts.

lt is a further object of the invention to provide such a tool with an operating spindle and mechanism for turning the same by which the spindle can either be continuously rotated or be oscillated to form what is known as a wiggleru It is also an object of the invention to provide the tool with adetachable handle by which it can be manipulated for various operations, which handle is readily removable. rlhe tool proper is provided with handle attaching means which, when'the handle is not in place, is suitable for attaching the same to a lathe when it is desired to use the tool for grinding the lathe centers.

rlhese and other objects of the invention will be apparent from the following description made in connection with the accompanying drawings in which like reference characters refer to the same parts throughout the dierent views, Vand in which- Fig. 1 in the most part, is a central longitudinal section through the device, showing the same as a valve grinding 'tool in engagement with a valve;

Fig. 2 is a top plan view of the tool with the handle attached shown on a reduced scale;

Fig. 3 is a view in side elevation of the 1921. Serial No. 457,597.

tool as seen from the right of Fig. 2, some parts being shown in section;

Fig. l is a transverse section of the device taken on the line 4-4 of Fi 1; and

Fig. 5 is a similar section ta en on the line 5-5 of Fig. 1;

Fig. 6 is a view in elevation of a drill chuck adapted to be used with the tool; and

7 is a view of the grindingwheel adapted to be used with the tool.

Referring to the drawings, the device comprises a casing formed with a bottom part 1, an intermediate part 2 and a top part 3. The bottom part l has tapered spindle on arm 1a projecting from the lower portion thereof which is suitably bored to receive a spindle 4 which is journaled therein and provided with a collar la which bears against the end of the portion 1a. The spindle l has a short projection beyond the collar la which has a transverse aperture therethrough adapted to receive a key or cotter` pin 5 of any desired type. The spindle is adapted to receive di'erent types of tools, such as the valve engaging tool 6 shown in Fig. 1, which is equipped with a flat tang at its outer end to engage in the groove commonly formed in an engine valve shown as 7 in Fig. 1. rlhis valve is shown in contact with its seat 8. The body of the casing 1 is cylindrical and hollow and a member 9 formed as a slotted crank has a cylindrical hub member bearing upon thebottom of the casing and rigidly secured to the inner end of the spindle 1. The intermediate casing has a cylindrical extension or sleeve 2a of a size to fit snugly inside of the casing 1, as shown in Figs. 1 and 5.

The casing 1 is provided at one side with a lug 1b and is split therethrough. This lug is bored and also tapped at one side to receive a clamping bolt 10. The bore in the bolt 10 extends slightly into the side of the extension 2L of the casing 2 and this portion 2a is formed with a circumferential groove 2b in which the bolt 1() is received. rlhis sleeve 2a can thus be rotated in the casing 1 until the ends of said slot 2b contact with the bolt 10. The sleeve 2a can also be clamped in the casing 1 by tightening vided at its inner end with a collar 1121 which bears against the outer side ofthe casing 2, and from the other side of which a crank pin 11b projects eccentrically to the shaft 11, which pin is arranged to project into a block member 13 which is slidable in the grooveV in the cam member 9. The shaft 11 at its outer end is provided with a small knul-led head 14 which is pinned, or otherwise suitably secured thereto. rlhe shaft 12 is provided at its inner' end with a collar portion 12a which bears against the; inner side of the casing member 2, andthe outerv end of this sha-ftis flush with the outer surface of the casing member 3. r1`he casing member 3 is provided with twocylindrical recesses 15 adjacent and communicating with each other invwhich are .fitted two small spur gears 16, the .outer diameter of said gears being substantially the same as that of the recesses 15.r AA. transverse bore or aperture 17 extends finto the member 3 and communicates withthe apertures 15 at the junction thereof." The outer end of this aperture 17 being enlarged and tapped to receive a supply pipe orA valvel connection. A. similar but somewhat larger aperture 17 extends from the other side of member 3 in alinement with the aperture 17. A valve member 13 is connected in the side of the casing 3 and provided with a lrnurled control sleeve by which theV entrance of fluid into the member 3 can bel accurately regulated. This valve is adapted to be attached to a fixed or other pipe leadingto a suitable fluid supply.v The gears 16 are rigidly secured to the shafts 11 and 12, respectively.

The casing 3 is secured to theintermediate casing2 by a plurality of spaced screws 19, the heads of which are countersunk to lie vhush with the top of said casing. rlihe casing has a projection 3a on its outer surface, of dove-tailed shape in cross section and a handle member 20 has one end recessed to lit thereover, which end is longitudinally split and provided with a clamping screw 21. The outer'end of the handle 2O is also provided with a slot 20a to enable it to pass around the shaft 11. 1t will be obvious that the handle 2O may be clamped to the portion 3at by the screw 21 and may be readily detached therefrom by loosening the screw. Y j

r1`he casing members 1 and 2 are provided with marks 3b on their outer surfaces which are designated by the numeral Zerorfor4 a purpose toY be hereinafter described.

In lieu of the valve engaging tool 6, the spindle 4 can be equipped with a grinding :ravages 1f itis desired to use the tool as adrill` grinding device, or for some other purpose, requiring constant rotation, the casing members 1 and 2 will be arranged as shown in Fig. 3, with 'the vzero marks thereon in alinement. In this position, the shaft 11 will be alined axially with the shaft or spindle 4. Fluid is now admitted by the valve 13 and this will act on the gears toturn the same and form a motor, the shafts 11 and 12 turning in their bearings in the casing 2 and 3. Movement will thus be given the shaft 11 which will be transmitted `through the crank members 11b and 9, to the spindle 4.-, and as this spindle and shaft 11 are in alinement, the spindle l will be constantly rotated. 1t will be apparent that the tool can then be used for drilling in any desired place or for a grinding or other operation. 1f it now be desired to use the tool as a wiggler or oscillating tool to grind the valves of an automobile or other engine, the Vcasing 2 willbe moved circumferentially of the casing 1 and the shafts 11 and t thus moved out of alinement. rlhe relative motion of the casing can, of course, be given by loosening the screw 10. When they tool is'now driven the shaft i will not be rotated through the crank connection but will be merely oscillated, such oscillating movement is desirable in grinding valves and for some other operations. As j above stated, the slot 2b in sleeve 2au will limit'the relative turning movement of the casing members 1 and 2, but this relative movement can be regulated as desired and' the members clamped, as also stated, by the screw 10. rPhe gears and spindledcan be turned manually, if desired, by turning the head 141. y

While the tool Vhas been shown as equipped with a fluid motor, it is within the Y scope of this invention to equip the same with an electric motor, if so desired. From the above description, it isclear that applicant has produced a very simple, compact ami eiiicient tool and one which has a wide Y Y combination a casing, a spindle journaled therein, a driving crank for said spindle, and an adjustable connection between said driving crank and spindle whereby said spindle can be either rotated or oscillated.

2. The structure set forth in claim l, said adjustable connection comprising a pin on said crank, and a crank on said spindle having a slot inwhich said pin fits and by which said last named crank is turned.

3. A tool of the class described having in combination a casing, an operating spindle journaled therein, a driving shaft, and a connection between said shaft and spindle, said shaft and spindle being relatively adjustable into concentric or eccentric position.

4.-. A tool of the class described having in combination a hollow casing, an operating spindle journaled therein and projecting therefrom, a slotted crank member secured to the inner end of said spindle in said casing, a block slidable in the slot in said crank member, a casing fitting into said first named casing and having a shaft journaled therein having a crank secured thereto carrying a pin disposed and rotatable in said block, said casings being angularly adjustable.

5. A tool of the class described having in combination a casing having a hollow portion, an operating spindle journaled in said portion, a slotted crank secured to said spindle adapted to rotate in said portion, a block slidable in said crank member, said casing having another portion received in said hollow portion and circumferentially movable, a driving shaft journaled in said last mentioned portion, said shaft having a crank pin extending eccentrically therefrom into the said hollow portion and engaging in said block, whereby the two portions of the casing may be movable relatively to bring the driving shaft and spindle into or out of axial alinement.

6. A tool of the class described comprising a casing having two parts, an operating spindle journaled in 'one of said parts and.

projecting therefrom at one side, said spindle being adapted to receive a plurality of different tools, driving means for said spindle journaled in the other part of said casing, and movably connected to said spindle, the parts of said casing being relatively movable to convert the driving means into a rotating means for said spindle or an oscillating means for said spindle.

In testimony whereof I affix my si nature.

JOSEPH. T. TLL AN. 

